mcimx27- Freescale Semiconductor, Inc, mcimx27- Datasheet - Page 48

• Manufacturer Part Number: mcimx27-
• Description: Multimedia Applications Processor
• Manufacturer: Freescale Semiconductor, Inc

Signal Descriptions
Figure 6
the timing parameters.
3.5.3
This section describes the electrical information of the Parallel ATA module compliant with ATA/ATAPI-6
specification.
Parallel ATA module can work on PIO/Multi-Word DMA/Ultra DMA transfer modes. Each transfer mode
has different data transfer rate, Ultra DMA mode 4 data transfer rate is up to 100 MB/s. Parallel ATA
module interface consist of a total of 29 pins, Some pins act on different function in different transfer
48
OW5
OW6
OW7
OW8
OW9
depicts Write 1 Sequence timing,
ID
ID
ATA Electrical Specifications
One-Wire bus
(BATT_LINE)
(BATT_LINE)
One-Wire bus
The parallel ATA module is not available on the i.MX27L
Write 0 Low Time
Transmission Time Slot
Write 1/Read Low Time
Transmission Time Slot
Release Time
Parameter
Parameter
Table 18. WR0 Sequence Timing Parameters
Figure 6. Write 1 Sequence Timing Diagram
Figure 7. Read Sequence Timing Diagram
Table 19. Write 1/Read Timing Parameters
Preliminary—Subject to Change Without Notice
i.MX27 and i.MX27L Data Sheet, Rev. 1.2
OW7
OW7
Figure 7
OW9
NOTE
t
t
Symbol
depicts the Read Sequence timing, and
Symbol
RELEASE
WR0_low
t
t
t
LOW1
SLOT
SLOT
OW8
OW8
OW5
Min
Min
60
60
15
1
Typical
Typical
100
117
117
5
Freescale Semiconductor
Max
Max
120
120
120
15
45
Table 19
Units
Units
µs
µs
µs
µs
µs
lists